iPhone 8 Plus Portrait Mode not working

Hi,
I received my iPhone 8 Plus today and the first thing I tried to do with it was taking a cool portrait photo. To my great disappointment, when setting the Camera on Portrait mode, the camera screen turns all white and I am not able to take a picture. If I try to shoot the camera, It just takes a full white picture.

When on regular photo mode, everything seems to be OK, but if I click on the 2x button, the same thing happens.

It seems to me like every feature that requires both cameras to be used triggers this issue.

Couple of suggestions. Try hard reset on your phone first. To do this press and release the Volume Up button, press and release the Volume Down button press and hold the Power Button until you see the Apple logo. Hopefully this will help. If not I would try a factory reset. Make sure you are running the latest version of iOS. If this doesn't help then ir may be a hardware issue that you will need Apple to diagnose the problem. Good luck and thanks.